Joint Task Force 116, not Brown Water Navy

[Bearmon]

please enjoy this insignia for JTF 116 a task force used in the early days of the Vietnam Conflict  large patch about 7 inches high

i added some links if you are interested in reading more about the Joint Task force 

The JTF was used in the early 60's to prepare for the war in VN.  this early use was in preparation for a conflict with Laos:  

Quote

Early SIGINT Efforts in Vietnam (Part 1 of 7) – Station HYPO

Between May and December 1961 a 14-nation conference held in Geneva devised an accord that assured the neutrality of Laos and established a coalition government under Prime Minister Souvanna Phouma.  However, the Pathet Lao and their neutralist allies took little heed of the peace accord.  Having regrouped, they started a new offensive early in 1962 and by the end of March had swept aside the Laotian government forces, surrounded Luang Prabang and were threatening Vientiane itself.  JTF 116 was reactivated and US transport aircraft began flying military equipment into Thailand for stockpiling as a Marine Corps assault force sailed towards the South China Sea.  On 18 May 1962 the USAF deployed the F-100-equipped 428th TFS from Cannon AFB, New Mexico to Takhli RTAB as the first of several temporary duty rotations.  On the same day A-4C Skyhawks of Marine Corps squadron VMA-332 and UH-34Ds of HMM-261 arrived at Udorn, Thailand.  Two weeks later USAF C-130s and C-124s began flying arms and supplies directly from Clark to Vientiane airport.  For several days the situation was very tense while President Kennedy took counsel on whether or not to deploy combat forces into Laos and make his stand against communism there.  In the event the fighting in Laos subsided as the warring factions came towards a negotiated agreement and US forces in Southeast Asia began a gradual stand down from a war footing.  The conference at Geneva made slow progress but eventually, on 23 July 1962, a Declaration on the Neutrality of Laos was signed requiring the removal of foreign troops from Laos and the monitoring of the agreement by the International Control Commission.

from the following link https://www.vhpa.org/KIA/panel/battle/62051900.HTM     Vietnam War Laotian Crisis of 1962 (vhpa.org)